openwrt-packages-dist/net/bind/Config.in

if PACKAGE_bind-server

config BIND_ENABLE_FILTER_AAAA
	bool
	default y
	prompt "Enable filtering of AAAA records returned to the client"
	help
		BIND 9 has an option to filter AAAA (IPv6 address) records
		returned to the client based on the transport used for the
		query, and other filtering conditions. This filtering does
		not affect the recursive queries made by the server (if
		any) as a result of the client request.

		Additional details are available at
		https://kb.isc.org/article/AA-00576/0/Filter-AAAA-option-in-BIND-9-.html

endif